20361-93-7

Basic information

• Product Name: (7aS,8S,11S,11aR,12aS)-10-Hydroxy-8-methyl-5,6,7a,8,10,11,11a,12,12a,13-decahydro-7H-9-oxa-6a,13-diaza-indeno[2,1-a]anthracene-11-carboxylic acid methyl ester
• CAS NO: 20361-93-7
• Molecular Weight: 370.448
• Mol File: 20361-93-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: (7aS,8S,11S,11aR,12aS)-10-Hydroxy-8-methyl-5,6,7a,8,10,11,11a,12,12a,13-decahydro-7H-9-oxa-6a,13-diaza-indeno[2,1-a]anthracene-11-carboxylic acid methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: (7aS,8S,11S,11aR,12aS)-10-Hydroxy-8-methyl-5,6,7a,8,10,11,11a,12,12a,13-decahydro-7H-9-oxa-6a,13-diaza-indeno[2,1-a]anthracene-11-carboxylic acid methyl ester(20361-93-7)
• EPA Substance Registry System: (7aS,8S,11S,11aR,12aS)-10-Hydroxy-8-methyl-5,6,7a,8,10,11,11a,12,12a,13-decahydro-7H-9-oxa-6a,13-diaza-indeno[2,1-a]anthracene-11-carboxylic acid methyl ester(20361-93-7)

Safety Data

• Hazardous Substances Data: 20361-93-7(Hazardous Substances Data)

Upstream product

• 2883-99-0 3-Acetyl-1-[2-(1H-indol-3-yl)-ethyl]-pyridinium; bromide 
• 60339-88-0 rac-19-oxo-(15βH)-17-nor-coryn-20-ene-16,16-dicarboxylic acid dimethyl ester 

Downstream Products

• 483-03-4 tetrahydroalstonine 
• 483-03-4 DL-Akuammigin 

Relevant articles and documents

HETEROYOHIMBINE ALKALOID SYNTHESIS

Preparation of the heteroyohimbine analogues 6 and 7 and a new short stereoselective total synthesis of (+/-)-3-iso-19-epiajmalicine 12 are described.

GENERAL METHODS OF SYNTHESIS OF INDOLE ALKALOIDS - 14. SHORT ROUTES OF CONSTRUCTION OF YOHIMBOID AND AJMALICINOID ALKALOID SYSTEMS AND THEIR 13C NUCLEAR MAGNETIC RESONANCE SPECTRAL ANALYSIS.

Conceptually new schemes of synthesis of indole alkaloids are introduced. The yohimboid ring system is constructed by the sequential treatment of 1-tryptophyl-3-( beta -ketobutyl)pyridinium bromide with base and acid. Hydrogenation of the product yields d,l-pseudoyohimbone. The ajmalicinoid ring system is formed by the exposure of 1-tryptophyl-3-acetylpyridinium bromide to sodio dimethyl malonate and then to acid, followed by hydrogenation. Subsequent reduction and dehydration of the products lead to the racemates of the alkaloids tetrahydroalstonine and akuammigine as well as isomers of ajmalicine. Shifts of specific carbons are found to be of stereochemically diagnostic value.